Hydraulic drilling-machine.



S. G. MONBBRG.

A HYDRAULIC vDRILLING MACHINE.

APPLICATION FILED 0UT.11, 1912.

Patented Mar. 31, 1914.

. n Ream@ Snom/Lto@ L mm l-LANOGRA SOREN C. MONBERG, OF

LEADVILLE, COLORADO.

HYDRAULIC DRILLING-MACHINE.

Specicaton of Letters Patent.

Patented Mar. 31, 1914.

Application filed October 11, 1912. Serial No. 725,342.

. chines, of which the following is a specification.

The invention relates to boring machines and more particularly to theclass of hydraulic rock drilling or boringmachines.

The primary object of the invention is the provision of a machine ofthis character wherein the drilling bit or auger will be rotated throughthe medium of water pressure the latter being deflected through asinuous course or waterway formed within the body of the machine.

Another object of the invention is the provision of a machine of thischaracter wherein hydraulic pressure is used both for rotating the tool,advancing the drill shank and also for spraying the jet about theworking end of the tool so that the material acted on will be softenedand thereby make easier the cutting action of the tool.

A further object of the invention is the provision of a drilling machineof thischaracter wherein the drilling tool or bit may be reciprocatedfor the lengthening or shortening of the same, and also which willrotate under the action of fluid pressure for operating upon a piece ofwork for the drilling thereof.

A still further object of the invention is the provision of a machine ofthis character which is simple in construction, strong, durable,reliable, efficient and easy in operation, and inexpensive inmanufacture.

lVith these and other objects in view the invention consists in theconstruction, combination and arrangement of parts as will behereinafter more fully described, illustrated in the accompanyingdrawings, an pointed out in the claims hereunto appended.

ln the drawings: Figure 1 is a side elevation of a machine constructedin accordance with the invention. Fig. 2 is a vertical longitudinalsectional view through the same. Fig. 3 is a sectional view on the line8-3 o Fig. 1. Fig. 4 is a sectional view on the line 4-4 of Fig. 1. Fig.5 is an end elevation of the tool.

Similar reference characters indicate corresponding parts throughout theseveral views in the drawings.

Referring to the drawings by numerals, the drilling machine comprises amain cylinder barrel 10, which may be of any suitable length andconstructed from any suitable material, the said barrel or cylinderbeing formed at its outer end with an internal seat 11 receiving an endcap or closure disk 12, the inturned circular flange 13 of whichsuitably telescopes within the said seat 11, and is fastened therein inany suitable manner. Formed in the flange 18 is an aperture 14, adaptedfor registration with a nipple 15 formed on the casing or barrel 10, forpermitting the discharge of fluid therefrom, and also allowing theinflow of fluid within the casing or barrel at the forward end thereof.Telescoping within the cylinder or barrel 10 is a hollow drill shank 18,the'same working through a suitable central aperture 19 formed in theouterk contracted end of the cap or disk 12, the said aperture beingprovided with suitable packing 20 to form a fluid tight joint betweenthe shank and the said cap or disk. The outer end of the shank 18 isprovided with a cutter head 21 of any approved form, while the inner endof the shank has fixed thereto a piston head 22, adapted to work withinthe cylinder or barrel 10 longitudinally thereof under the pressure offluid admitted thereto.

fntegrally formed within the shank 18 for a greater portion of itslength is a spiral partition or vein 23, which affords a spiral watercourse interiorly of said shank, the water being introduced at the innerend of the shank 18 to the said water course through a central aperture24 formed in the piston head 22 and on the admission of said waterthereinto the shank 18 by reason of the impact of the water against thespiral vein or partition 28 will rotate thereby driving the cutter head21,' so that the same may act upon the earth or rock strata for theboring or drilling of the same.

Threaded or otherwise mounted on the cylinder or barrel 10 at the innerend of the same is a cap 25 formed with an externally threaded nipple26, to which is adapted to be connected a hose supply pipe 27 adapted tobe connected with any suitable water pressure apparatus so as to forcethe water under pressure into the cylinder or barrel 10 rearwardly ofthe piston head 22, thus operating the shank 18 and its cutter drillingpurposes. The pressure of water against the piston head 22 will effectthe extending of the shank 18 for sustaining the cutter head 21 incutting relation to the material operated upon thereby. The shank 18 atits outer vend and within the head is formed with reversely curveddischarge nozzles 28, which permit the water passing through said shankto be discharged through the cutter head 21 during the working thereofand in this manner the loose material will be washed away and preventedfrom clinging to the cutter head during its action, and also will effectthe softening of the material being acted upon, so as to assure thepositive cutting thereof by the cutterhead, .the water being dischargedthrough the nozzles and is directed thereto from the water course formedby the spiral :vein or partition 23 within the said shank.

From the foregoing description, taken in connection with theaccompanying drawings, it is thought th atthe construction and operationof the invention will be clearly understood, and therefore, a moreextended explanation has been omitted.

What is claimed is s A 1. A drilling machine comprisinga cylinder,a'piston reciprocatingly movable within the cylinder and having a hollowdrill shank projected exteriorly through one end of the cylinder, thebore of the shank being extended thro-ugh the piston, a'spirallyarranged Copies of this patent may be obtained for ive cents each, byaddressing the Commissioner of Patents,

head 21 for partition formed integrally with the shank and extendingthroughout a greater portion of the length thereof wit-hin the bore ofthe same, a cutter head mounted on the outer end of the shank, a nipplemounted within the outer end of the bore of the shank and havingreversely curved discharge nozzles, and means for admitting fluid to thecylinder at one side of the piston. I

2. A drilling machine comprising a cylinder, a piston reciprocatinglythe cylinder and having a hollow drill shank projected exteriorlythrough one end of the cylinder, the bore of the shank being extendedthrough the piston, a spirally arranged partition formed integrally withthe shank and extending throughout a greater portion of the lengththereof within the bore of the same, a cut-ter head mounted on the outerend of the shank, a nipple mounted within the outer endof the bore ofthe shank and movable within having reversely curved discharge nozzles,

and means for admitting fluid to the cylinder at one side of the piston,the said cylinder being provided with a port to permit the iniow andout-flow of iiuid to and from the cylinder at the other side of thepiston. e

In testimony whereof I aliix my signature in presence of two witnesses.

Y SOREN C. MONBERG. itnessesz 'i FRANK X. HOGAN, CHAs. F. PRIDDY.

